htc_3_27.swift

class NewsStore {
    @Published private(set) var state: NewsState
    private let reducer: (NewsState, NewsEvent) -> NewsState
    init(
        initialState: NewsState,
        reducer: @escaping (NewsState, NewsEvent) -> NewsState
    ) {
        self.state = initialState
        self.reducer = reducer
    }
    func accept(event: NewsEvent) {
        state = reducer(state, event)
    }
}